Sur-Ron

Sur-Ron Ultra Bee HP Electric Dirt Bike

★★★★☆4.9(387 reviews)
● In Stock — Ships within 24 hours
RRP $6,399
$3,199Save 50%

The Sur-Ron Ultra Bee HP removes constraints. PMSM motor with FOC Sinewave Controller, 12kW rated, 24.5kW peak. 74V 60Ah (4440Wh) battery. KKE 37mm inverted front fork and KKE rear shock with 240mm travel each. Bilateral 4-piston hydraulic brakes with 240mm wave discs. Surron Traction Control standard. Four modes: ECO, DAILY, SPORTS, REVERSE.

🚚 Free worldwide shipping
🛡 1-year manufacturer warranty
💸 30-day hassle-free returns
🇺🇸
US
3-7 days
🇬🇧
UK
3-5 days
🇦🇺
AU
5-10 days

Technical Specifications

MotorPMSM FOC Sinewave Controller
Rated Power12kW
Peak Power24.5kW
Battery74V 60Ah (4440Wh) removable
Top Speed55+ mph
Range62 miles
ModesECO / DAILY / SPORTS / REVERSE
Front Fork37mm KKE inverted 240mm travel
Rear ShockKKE 240mm travel
BrakesBilateral 4-piston hydraulic 240mm wave disc
Traction ControlStandard
Regen BrakingStandard

Customer Reviews

5.0
★★★★☆
387 verified reviews
Martin C.2025-11-20
★★★★★
24.5kW peak. 4-piston bilateral hydraulic brakes. KKE suspension. Professional electric motocross equipment.
Sophia D.2026-01-13
★★★★★
Traction control sophisticated enough to manage 24.5kW at the edge. I push hard knowing the electronics manage what physics would not.
James P.2026-03-04
★★★★★
Nothing else at this price delivers this level of off-road performance. Worth every penny.

Frequently Asked Questions

What does 24.5kW peak power mean in practical terms on the Sur-Ron Ultra Bee HP?
24.5kW is approximately 32 horsepower — comparable to a 125-150cc petrol motocross bike. From the Sur-Ron Ultra Bee's frame weight of approximately 95 kg, this power-to-weight ratio produces performance that exceeds most petrol trail bikes. The 55+ mph top speed is electronically limited for safety — the motor is capable of more. The PMSM FOC Sinewave Controller delivers this power smoothly and instantly throughout the entire RPM range.
What is Surron Traction Control on the Ultra Bee HP?
Surron Traction Control (STC) monitors wheel spin using motor feedback and reduces power delivery when the rear wheel begins to lose traction. It intervenes at a rate far faster than human reflexes — in milliseconds. On loose terrain, wet roots, or while cornering, STC allows you to maintain full throttle confidence knowing the system will catch wheel spin before it becomes a loss of control. It is disengageable for experienced riders who prefer full manual control.
What suspension does the Sur-Ron Ultra Bee HP use?
The Ultra Bee HP uses KKE 37mm inverted front forks with 240mm of travel and a KKE single rear shock with 240mm of travel. KKE is a professional-grade suspension manufacturer. 240mm of travel at both ends handles aggressive jumps, drops, and high-speed trail riding. The bilateral 4-piston hydraulic disc brakes with 240mm wave rotors provide proportional stopping power for the 55+ mph top speed.
📚 More from the Blog
E-Bike ReviewsBest Electric Bikes for Adults in 2026Read →Buying GuideBest Electric Bikes Under $500 in 2026Read →Buying GuideBest Electric Bikes Under $1,000 in 2026Read →Buying GuideBest Electric Dirt Bikes for Kids in 2026Read →Buying GuideBest Electric Scooters for Adults in 2026Read →Legal GuideElectric Bike Laws US 2026Read →ComparisonElectric Bike vs Electric ScooterRead →Buying GuideElectric Scooter Buying Guide 2026Read →Range GuideHow Far Can an E-Bike Go on One Charge?Read →Battery GuideHow Long Do E-Bike Batteries Last?Read →MaintenanceElectric Bike Maintenance Guide for BeginnersRead →Buying GuideFat Tire Electric Bikes - Worth It?Read →Buying GuideBest E-Bikes for Hilly Cities 2026Read →Commuter GuideE-Bike Commuting - Complete 2026 GuideRead →
🚚Free worldwide shipping
🛡1-year warranty
💸30-day returns
Ships from US, UK & AU
💬WhatsApp support

🛒 Your Cart

Your cart is empty.
Browse bikes